id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
15998,segfault at 18 in libc-2.19.so with  VB 5.1.6,Don Hughes,,"Guest and all VBox controls totally unresponsive.  Had to kill VBoxSVC from another session to regain control.  CPU was NOT at 100% as in previous freezes.

{{{
Sep 26 16:44:20 Gull2 kernel: usb 3-11.4: Manufacturer: Logitech
Sep 27 10:00:40 Gull2 kernel: EMT-0[1624]: segfault at 18 ip 00007f94cfcd3b48 sp 00007f949e15a6e0 error 4 in libc-2.19.so[7f94cfc5b000+19e000]
Sep 27 10:00:40 Gull2 kernel: device Net1 left promiscuous mode
Sep 27 10:00:40 Gull2 kernel: vboxnetflt: 0 out of 15388517 packets were not sent (directed to host)
Sep 27 10:01:06 Gull2 kernel: vboxdrv: ffffffffa14a1020 VMMR0.r0
Sep 27 10:01:06 Gull2 kernel: vboxdrv: ffffffffa15a0020 VBoxDDR0.r0
Sep 27 10:01:06 Gull2 kernel: VBoxNetFlt: attached to 'Net1' / ec:b1:d7:37:82:1c
Sep 27 10:01:07 Gull2 kernel: vboxdrv: ffffffffa001e020 VBoxEhciR0.r0
Sep 27 10:01:07 Gull2 kernel: device Net1 entered promiscuous mode
Sep 27 15:37:56 Gull2 kernel: usb 3-11.4: Manufacturer: Logitech
Sep 27 15:44:30 Gull2 kernel: usb 3-11.4: Manufacturer: Logitech
}}}

A VBox.Log  is attached.  However, this is from after the restart.  It looks like the log from the fault was overwritten.
",defect,closed,host support,VirtualBox 5.1.6,fixed,,,Windows,Linux